Display module, display device, and display device control method

Abstract

This application relates to a display module, a display device, and a control method for the display device. The display module includes a display panel and a privacy protection assembly. The privacy protection assembly includes an adjustment mechanism and a plurality of light-blocking portions spaced apart on the light-emitting side of the display panel. The adjustment mechanism is configured to act on the light-blocking portions to deform them, thereby forming a light-blocking surface that is angled relative to the light-emitting surface of the display panel. This display module can address the problem of in-vehicle display modules easily causing interference to the driver.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display module, a display device, and a control method for the display device. Background Art

[0002] Due to their high brightness, in-vehicle display modules can easily distract and disrupt the driver. However, since the driver or co-pilot needs to use the in-vehicle display module, it is usually kept in a constant-on mode, making it impossible to eliminate the interference by simply turning off the power, thus reducing driving safety. Summary of the Invention

[0003] Based on this, it is necessary to provide a display module, a display device and a control method for the display device to address the problem that the vehicle-mounted display module easily causes interference to the driver.

[0004] According to one aspect of the present application, a display module is provided, comprising:

[0005] display panel; and

[0006] The anti-peeping component includes an adjustment mechanism and a plurality of light-blocking portions arranged at intervals on the light-emitting side of the display panel; the adjustment mechanism is configured to act on the light-blocking portion to deform the light-blocking portion, thereby forming a light-blocking surface arranged at an angle relative to the light-emitting surface of the display panel.

[0007] The display module provided by the embodiment of the present application has an anti-peeping component provided on the light-emitting side of the display panel, and the anti-peeping component includes an adjustment mechanism and a plurality of light-blocking portions covering the light-emitting side of the display panel, and the adjustment mechanism is configured to act on the light-blocking portion to deform the light-blocking portion, so that the light-blocking portion forms a light-blocking surface that is set at an angle relative to the light-emitting surface of the display panel. In the normal display state, the light emitted by the display panel passes through the gaps between adjacent light-blocking portions, and under the effect of light diffraction, the light emitted by the display panel is visible at all viewing angles on the light-emitting side; in the anti-peeping state, the light-blocking portion is deformed by the adjustment mechanism, so that the light-blocking portion forms a light-blocking surface that is set at an angle relative to the light-emitting surface of the display panel, and the plurality of light-blocking portions form a plurality of light-blocking surfaces on the light-emitting side of the display panel, which blocks the light emitted by the display panel in the direction of the light-blocking surface, so that the light emitted by the display panel is invisible at some viewing angles, thereby achieving an anti-peeping effect. Based on this, according to the usage requirements of the display module, the light-blocking part is controlled so that the light-blocking part is deformed or not deformed, thereby realizing the switching between the anti-peeping state and the normal display state, thereby preventing the display module from interfering with the user when the user does not need to use it.

[0008] In some embodiments, in the normal display state, the light-blocking portion is in a wrinkled state to avoid the light-blocking portion blocking light to ensure that the full viewing angle is visible; in the anti-peeping state, the light-blocking portion is in a flattened state to make part of the viewing angle invisible and part of the viewing angle visible; or, in the normal display state, the light-blocking portion is in a contracted state to avoid the light-blocking portion blocking light to ensure that the full viewing angle is visible; in the anti-peeping state, the light-blocking portion is in an extended state to make part of the viewing angle invisible and part of the viewing angle visible.

[0009] Optionally, in the anti-peeping state, the light-blocking surface is constructed as a plane arranged at an angle relative to the light-emitting surface of the display panel; in this way, the structure of the optical film layer is relatively simple, thereby simplifying the molding process.

[0010] Optionally, in the anti-peeping state, the light-blocking surfaces formed by the multiple light-blocking portions are arranged parallel to each other. Based on this, the multiple light-blocking surfaces can form a grid shape, so that each area of ​​the display panel can achieve a uniform anti-peeping effect.

[0011] In some embodiments, the privacy protection assembly further comprises an optical film layer, the optical film layer comprising a light-transmitting portion and a light-blocking portion, the optical film layer having multiple fixed regions and multiple deformable regions; an adjustment mechanism is positioned between the display panel and the optical film layer; the light-blocking portion and at least a portion of the light-transmitting portion are positioned in the deformable regions; the adjustment mechanism is correspondingly positioned between the deformable regions and the display panel; the deformable regions are configured to deform convexly outwardly toward a side facing away from the display panel in response to the action of the adjustment mechanism, so that the light-blocking portion forms a light-blocking surface disposed at an angle relative to the light-emitting surface of the display panel. By causing the adjustment mechanism to act on the deformable regions, the light-blocking portion forms a light-blocking surface disposed at an angle relative to the light-emitting surface of the display panel, thereby achieving invisibility at a specific viewing angle.

[0012] In some embodiments, the optical film layer includes a first optical film layer and a second optical film layer stacked together; the first optical film layer includes a plurality of first sub-light-transmitting portions and a plurality of hollow portions; the second optical film layer includes a plurality of second sub-light-transmitting portions and a plurality of light-blocking portions; the light-blocking portions and at least a portion of the second sub-light-transmitting portions are located in a deformation region; the first sub-light-transmitting portions are located in a fixed region; the light-blocking portions and the second sub-light-transmitting portions are located on either side of a corresponding adjustment mechanism, and the adjustment mechanism is configured to act on the second optical film layer to cause the light-blocking portions and the second sub-light-transmitting portions to deform. The adjustment mechanism can cause the morphology of the light-blocking portions and the second sub-light-transmitting portions to change synchronously. The morphology of the light-blocking portions and the second sub-light-transmitting portions can always remain the same.

[0013] In some embodiments, the orthographic projection of the light-blocking portion on the light-emitting surface of the display panel partially covers the orthographic projection of the corresponding hollow portion on the light-emitting surface of the display panel; the orthographic projection of the second sub-light-transmitting portion on the light-emitting surface of the display panel completely covers the orthographic projection of the corresponding first sub-light-transmitting portion on the light-emitting surface of the display panel. In this way, the light-transmitting area of ​​the second sub-light-transmitting portion is greater than or equal to the light-transmitting area of ​​the first sub-light-transmitting portion, which can prevent the second optical film layer from blocking the light-transmitting area of ​​the first optical film layer. At the same time, the light-blocking portion and the hollow portion are arranged relative to each other, so that the light-transmitting area of ​​the first optical film layer and the light-transmitting area of ​​the second optical film layer are arranged relative to each other. Based on this, when the hollow area of ​​the first optical film layer and the light-blocking area of ​​the second optical film layer are determined, the overall light-transmitting area of ​​the optical film layer is maximized, thereby ensuring the display effect.

[0014] Optionally, a portion where the orthographic projections of the second sub-light-transmitting portion and the corresponding first sub-light-transmitting portion on the light-emitting surface of the display panel overlap is located in a fixed area.

[0015] Optionally, the adjustment mechanism is located in the hollow portion.

[0016] Optionally, the first optical film layer is located between the display panel and the second optical film layer.

[0017] Optionally, the adjustment mechanism is located between the display panel and the second optical film layer.

[0018] Optionally, the first sub-light-transmitting portion and the second sub-light-transmitting portion are connected, and the first sub-light-transmitting portion fixes the fixed end of the second sub-light-transmitting portion.

[0019] Optionally, the first light-transmitting sub-portion is connected to the light-blocking portion, and the first light-transmitting sub-portion fixes the fixed end of the light-blocking portion.

[0020] Optionally, the adjustment mechanism is connected to the corresponding second sub-light-transmitting portion and the light-blocking portion.

[0021] Optionally, the second sub-light-transmitting portions and the light-blocking portions are alternately arranged along a first direction, wherein the first direction is parallel to the light-emitting surface of the display panel.

[0022] In some embodiments, the thickness of the first optical film layer is greater than that of the second optical film layer. Thus, the space provided in the hollow portion of the first optical film layer is relatively large, thereby increasing the space available for installing an adjustment mechanism between the display panel and the optical film layer, thereby reducing the difficulty of the process.

[0023] In some embodiments, the light-blocking portion includes a fixed end and a movable end, and the adjustment mechanism is configured to drive the movable end of the light-blocking portion to move in a direction perpendicular to the light-emitting surface of the display panel to adjust the shape of the light-blocking portion.

[0024] Optionally, the adjustment mechanism includes: a magnetic component, the magnetic component includes a first magnet and a second magnet opposite to each other in a direction perpendicular to the light-emitting surface of the display panel; the first magnet and / or the second magnet are configured to be magnetically adjustable, so that when the magnetic properties of the relative poles of the first magnet and the second magnet are the same, the second magnet is moved in a direction away from the first magnet, so that the light-blocking portion forms a light-blocking surface that is set at an angle relative to the light-emitting surface of the display panel. In this way, when it is necessary to switch to the anti-peeping state, by adjusting the magnetic properties of the relative poles of the first magnet and the second magnet to be the same, the repulsive magnetic force between the first magnet and the second magnet is used to move the second magnet away from the first magnet, so as to drive the deformation area of ​​the optical film layer to deform outwardly toward the side away from the display panel, forming a light-blocking surface that is set at an angle relative to the light-emitting surface of the display panel, so as to achieve invisibility at a specific viewing angle. When it is necessary to switch to the normal display state, the magnetic properties of the relative poles of the first magnet and the second magnet are adjusted to be opposite, and the magnetic force between the first magnet and the second magnet is used to make the second magnet attract the first magnet, so that the optical film layer is restored to a flat state and full-viewing angle visibility is achieved.

[0025] In some embodiments, the orthographic projection of the first magnet on the light emitting surface of the display panel completely overlaps with the orthographic projection of the second magnet on the light emitting surface of the display panel, thereby improving the display effect while ensuring a larger magnetic force.

[0026] Optionally, the adjustment mechanism includes a telescopic member disposed between the display panel and the light-blocking portion. Based on this, the light-blocking portion can be deformed by the telescopic movement of the telescopic member.

[0027] According to another aspect of the present application, a display device is provided, comprising: the display module as described above; and

[0028] a tracking unit configured to monitor eye feature data of a person in a target space; and

[0029] The controller is electrically connected to the tracking unit and the adjustment mechanism. The controller is configured to control the adjustment mechanism according to the eye feature data monitored by the tracking unit so that the light-blocking portion forms a light-blocking surface set at an angle relative to the light-emitting surface of the display panel.

[0030] Optionally, the eye adjustment data includes eye gaze direction data and eye gaze time data.

[0031] Based on this, the tracking unit monitors the eye feature data of people in the target space to determine whether the people in the target space are watching the screen, and then the controller controls the adjustment mechanism according to the eye feature data monitored by the tracking unit, so that when the people in the target space do not need to watch the screen, the anti-peeping mode is turned on, and when the people in the target space need to watch the screen, the anti-peeping mode is turned off and the screen is changed to the normal display state.

[0032] According to another aspect of the present application, a control method for a display device according to the above aspect is provided, comprising the following steps: obtaining eye feature data of a person in a target space through a tracking unit; determining, based on the eye feature data, whether the eye feature data satisfies an anti-peeping condition; and if so, controlling an adjustment mechanism to act on a light-blocking portion to deform the light-blocking portion, thereby forming a light-blocking surface disposed at an angle relative to the light-emitting surface of the display panel. This allows the display to be promptly adjusted to an anti-peeping state when the user no longer needs to use the screen.

[0033] In some embodiments, the eye feature data includes eye gaze direction data and eye gaze time data; the anti-peeping conditions include: the angle between the eye gaze direction of a person in the target space and the plane where the display device is located exceeds a preset threshold range; and the eye gaze time of the person in the target space exceeds a preset critical time.

[0034] Optionally, the eye fixation time data is obtained by taking at least two consecutive human face images in which the variation of the eye position of the human in the target space is less than a preset critical value;

[0035] Optionally, the eye fixation time data is obtained through at least two consecutive human face images in which the eye positions of the person in the target space remain unchanged.

[0036] Based on this, it is possible to more accurately determine whether it is necessary to turn on the anti-peeping mode. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 A schematic diagram showing the structure of a display module in a normal display state according to an embodiment of the present application is shown;

[0038] Figure 2 Shown Figure 1 The schematic diagram of the structure of the display module in the anti-peeping state;

[0039] Figure 3 A schematic structural diagram of another embodiment of the present application showing a display module in an anti-peeping state is shown;

[0040] Figure 4 A schematic diagram of the structure of a display device for vehicle-mounted display in one embodiment of the present application is shown;

[0041] Figure 5 A schematic structural diagram of a display device for vehicle-mounted display in another embodiment of the present application is shown;

[0042] Figure 6 A flowchart of a method for controlling a display device in an embodiment of the present application is shown.

[0043] Description of Figure Numbers:

[0044] 10. Display device; 20. Vehicle body; 30. Steering wheel;

[0045] 11. Display panel; 11a. Light emitting surface;

[0046] 12. Optical film layer;

[0047] 121, first optical film layer; 121a, hollow portion; 121b, first sub-light-transmitting portion; 122, second optical film layer; 122a, second sub-light-transmitting portion; 122b, light-blocking portion;

[0048] 123, third optical film layer; 123a, hollow portion; 123b, third sub-light-transmitting portion; 124, fourth optical film layer; 125, fifth optical film layer; 125a, hollow portion; 125b, light-blocking portion;

[0049] 131. First magnet; 132. Second magnet. DETAILED DESCRIPTION

[0050] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0051] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0052] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0053] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0054] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0055] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0056] With the rapid development of smart cockpits, in-vehicle display modules are becoming more numerous and larger. Because the driver needs to concentrate on driving, they use the in-vehicle display module less frequently. However, the co-driver uses the in-vehicle display module more frequently, and the driver sometimes needs to use the in-vehicle display module to perform functional operations. Therefore, the in-vehicle display module is usually in constant-on mode. However, in-vehicle display modules are generally bright, making them easily distracting to the driver in constant-on mode, especially at night, where the degree of distraction is even greater, resulting in reduced driving safety.

[0057] To solve the above problems, the present application provides a display module, in which an anti-peeping component is arranged on the light-emitting side of the display panel, and the shape of the light-blocking part in the anti-peeping component is adjusted according to the user's usage requirements. When the display panel needs to be in the anti-peeping state, the light-blocking part is controlled to be deformed to form a light-blocking surface arranged at an angle relative to the light-emitting surface of the display panel. The light-blocking surface is used to block the propagation of light emitted by the display panel in a specific direction, thereby achieving invisibility at a specific viewing angle; when the display panel needs to be in the normal display state, the light-blocking part is controlled to return to its initial shape, so that the light emitted by the display panel is visible at all viewing angles.

[0058] Based on this, when the display module is used for in-vehicle display, the visibility of the display module to the main driver can be controlled according to demand, reducing the impact of the display module on the main driver and ensuring his safety, while ensuring that the co-driver can always use it normally.

[0059] Figure 1 A structural diagram of a display module in a normal display state in an embodiment of the present application is shown. Figure 2 Shown Figure 1 The schematic diagram of the structure of the display module in the anti-peeping state.

[0060] See Figure 1 and Figure 2 , an embodiment of the present application provides a display module, including a display panel 11 and an anti-peeping component. Exemplarily, the display panel 11 is an organic light emitting diode (OLED) display panel 11, which can specifically be an active matrix organic light emitting diode panel (AMOLED) or a passive matrix organic light emitting diode panel (PMOLED). Optionally, the anti-peeping component can be arranged on the light-emitting side 11a of the display panel 11. The anti-peeping component includes an adjustment mechanism and a plurality of light-blocking portions 122b located on the light-emitting side of the display panel 11. The adjustment mechanism is configured to act on the light-blocking portion 122b to deform the light-blocking portion 122b, thereby forming a light-blocking surface that is arranged at an angle relative to the light-emitting surface 11a of the display panel 11. The light-blocking surface is not parallel to the light-emitting surface 11, and the light-blocking surface is inclined relative to the light-emitting surface 11. The plurality of light-blocking portions 122b can be arranged at intervals. Exemplarily, the plurality of light-blocking surfaces are arranged in a grid shape.

[0061] Based on this, in the normal display state, the light emitted by the display panel 11 passes through the gap between adjacent light-blocking portions 122b, and under the effect of light diffraction, the light emitted by the display panel 11 is visible at all viewing angles on the light-emitting side 11a; in the anti-peeping state, the light-blocking portion 122b is deformed by the adjustment mechanism acting on the light-blocking portion 122b, so that the light-blocking portion 122b forms a light-blocking surface arranged at an angle relative to the light-emitting surface 11a of the display panel 11. The multiple light-blocking surfaces formed by the multiple light-blocking portions 122b block the light emitted by the display panel 11 toward the light-blocking surface (that is, the light emitted by the display panel 11 toward the main driver) on the light-emitting side 11a of the display panel 11, so that the light emitted by the display panel 11 is invisible at some viewing angles, for example, it is visible to the co-driver but not to the main driver, thereby achieving an anti-peeping effect. In this way, according to the usage requirements of the display module, the light-blocking portion 122b is controlled so that the light-blocking portion 122b is deformed or not deformed, thereby realizing the switching between the anti-peeping state and the normal display state, thereby preventing the display module from interfering with the user when the user does not need to use it.

[0062] In an exemplary embodiment, in a normal display state, the light blocking portion 122b is in a wrinkled state (see Figure 1 ), in the anti-peeping state, the light-blocking portion 122b is in a flattened state (see Figure 2 ). It is understandable that, in order to ensure the display effect, the area blocked by the single light-blocking portion 122b in the wrinkled state on the display panel 11 will be very small. For example, the area blocked by the single light-blocking portion 122b on the display panel 11 is on the micron level. Therefore, if the light-blocking portion 122b has wrinkles in the normal display state, the wrinkles are difficult for the user to observe. After the adjustment mechanism removes the force acting on the film layer of the light-blocking portion 122b, the optical film layer 12 can change from a flat state to a wrinkled state under the action of the elastic restoring force, so that the light emitted from the display panel to the driver's side by the light-blocking portion changes from a light-shielding state to a non-light-shielding state, that is, the light-blocking portion 122b can be in a wrinkled state in the normal display state and in a flat state in the anti-peeping state.

[0063] In another exemplary embodiment, in the normal display state, the light-blocking portion 122b is in a retracted state, and in the anti-peeping state, the light-blocking portion 122b is in an extended state. Specifically, the film layer forming the light-blocking portion 122b is selected from a deformable material. Thus, after the adjustment mechanism removes the force acting on the light-blocking portion 122b, the optical film layer 12 can be elastically restored to a retracted state from an extended state, thereby changing the light-blocking portion's shielding state from the driver's side of the display panel to a non-shielding state. In other words, the light-blocking portion 122b can be retracted in the normal display state and extended in the anti-peeping state. The light-blocking portion 122b can be a retractable film layer.

[0064] Optionally, the angle α of the light-blocking surface relative to the light-emitting surface 11a of the display panel 11 satisfies the condition: 0°<α<90°. Preferably, the angle α of the light-blocking surface relative to the light-emitting surface 11a of the display panel 11 satisfies the condition: 0°<α≤45°. In this way, when the light-blocking portion 122b forms a light-blocking surface arranged at an angle relative to the light-emitting surface 11a of the display panel 11, the deformation amount generated by the film layer of the light-blocking portion 122b is small, thereby reducing damage to the film layer of the light-blocking portion 122b. For example, in some embodiments, the angle α is 10°, 15°, 20°, 30°, 35°, or 40°.

[0065] Furthermore, the angle between the light-blocking surface and the light-emitting surface 11a of the display panel 11 can be adjusted as needed. This allows for adjustment of the degree of blocking of light emitted from the display panel 11 in the privacy protection state, thereby adjusting the level of privacy protection. The size of the light-blocking portion 122b can be set to micrometers to ensure that, in the normal display state, the light-blocking portion 122b does not affect the user's normal viewing of the image displayed on the display panel 11.

[0066] In some embodiments, in the anti-peeping state, the light-blocking surface is constructed as a plane arranged at an angle relative to the light-emitting surface 11 a of the display panel 11 , so that the structure of the optical film layer 12 is relatively simple, thereby simplifying the molding process.

[0067] Furthermore, in the privacy protection state, the light-blocking surfaces formed by the multiple light-blocking portions 122b are arranged parallel to each other. Based on this, the multiple light-blocking surfaces can form a grid pattern, enabling each area of ​​the display panel 11 to achieve a uniform privacy protection effect. The multiple light-blocking portions 122b can be arranged at equal intervals along the first direction. The light-blocking portions 122b can have the same size along the first direction.

[0068] In some embodiments, the anti-peep component includes a light-blocking film layer, which is provided with a plurality of hole areas (equivalent to light-transmitting areas). The plurality of hole areas separate other areas of the light-blocking film layer into a plurality of light-blocking portions 122b. The adjustment mechanism is located between the display panel 11 and the light-blocking film layer 12. The adjustment mechanism is configured to act on the light-blocking film layer so that the light-blocking portion 122b forms a light-blocking surface arranged at an angle relative to the light-emitting surface 11a of the display panel 11.

[0069] Optionally, the side of the adjustment mechanism facing away from the display panel 11 is connected to the non-hole-dug area of ​​the light-blocking film layer, so that the adjustment mechanism can directly act on the light-blocking film layer to deform the light-blocking portion 122 b.

[0070] In some embodiments, the anti-peep component also includes an optical film layer 12, the optical film layer 12 includes a light-transmitting portion and a light-blocking portion 122b, multiple light-blocking portions 122b are separated by the light-transmitting portion, and the adjustment mechanism is located between the display panel 11 and the optical film layer 12. The adjustment mechanism is configured to act on the optical film layer 12 to cause the optical film layer 12 to deform, thereby forming a light-blocking surface that is arranged at an angle relative to the light-emitting surface 11a of the display panel 11.

[0071] Based on this, in the normal display state, the light emitted by the display panel 11 is transmitted through the light-transmitting portion, and due to the diffraction of light, the light emitted by the display panel 11 is visible at all viewing angles on the light-emitting side. In the anti-peeping state, the adjustment mechanism acts on the optical film layer 12, causing the optical film layer 12 to deform, so that the light-blocking portion 122b on the optical film layer 12 forms a light-blocking surface arranged at an angle relative to the light-emitting surface 11a of the display panel 11. The multiple light-blocking surfaces formed by the multiple light-blocking portions 122b are on the side of the light-emitting surface 11a of the display panel 11, blocking the light emitted by the display panel 11 in the direction of the light-blocking surface, making the light emitted by the display panel 11 invisible at certain viewing angles, thereby achieving an anti-peeping effect. In this way, according to the usage requirements of the display module, the light-blocking portion 122b is controlled to cause the optical film layer 12 to deform or not deform, thereby achieving switching between the anti-peeping state and the normal display state, thereby preventing the display module from disturbing the user when the user does not need to use it.

[0072] Optionally, the optical film layer 12 has multiple fixed regions and multiple deformable regions; the light-blocking portion 122b and at least a portion of the light-transmitting portion are located in the deformable region; the adjustment mechanism is correspondingly disposed between the deformable region and the display panel 11; the deformable region is configured to deform outwardly toward the side facing away from the display panel 11 in response to the action of the adjustment mechanism, so that the light-blocking portion forms a light-blocking surface arranged at an angle relative to the light-emitting surface 11a of the display panel 11. Exemplarily, the optical film layer 12 is attached to the surface of the display panel 11. When the adjustment mechanism does not exert an outward force on the optical film layer 12, the deformable region and the fixed region form a plane parallel to the light-emitting surface 11a of the display panel 11. When the adjustment mechanism acts on the optical film layer 12, causing the deformable region to deform outwardly toward the side facing away from the display panel 11, the deformable region and the fixed region form an intersecting plane, thereby forming the light-blocking portion 122b into a light-blocking surface arranged at an angle relative to the light-emitting surface 11a of the display panel 11, thereby achieving invisibility at a specific viewing angle. At this time, the light-transmitting portion forms a light-transmitting surface that is arranged at an angle relative to the light-emitting surface 11 a of the display panel 11 .

[0073] It is understood that when the deformation region deforms convexly toward the side facing away from the display panel 11 under the action of the adjustment mechanism, a first plane and a second plane intersect on either side of the position where the adjustment mechanism applies force to the deformation region, and both the first plane and the second plane intersect with the light-emitting surface 11a of the display panel 11. Based on this, the light-blocking portion 122b being provided in the deformation region includes: the light-blocking portion 122b being provided in the first plane or the light-blocking portion 122b being provided in the second plane. The light-blocking portion 122b and the light-transmitting portion corresponding to the same adjustment mechanism correspond to one and the other of the first and second planes, respectively.

[0074] In some embodiments, the optical film layer 12 includes a first optical film layer 121 and a second optical film layer 122 stacked together. Optionally, the first optical film layer 121 includes multiple hollow portions 121a and multiple first sub-light-transmitting portions 121b. Optionally, the second optical film layer 122 includes multiple second sub-light-transmitting portions 122a and multiple light-blocking portions 122b. Optionally, the light-blocking portions 122b and at least a portion of the second sub-light-transmitting portions 122a are located in a deformable region. Optionally, the first sub-light-transmitting portions 121b are located in a fixed region.

[0075] Optionally, the light-blocking portion 122b and the second sub-light-transmitting portion 122a are located on both sides of a corresponding adjustment mechanism, and the adjustment mechanism is configured to act on the second optical film layer 122 to deform the light-blocking portion 122b and the second sub-light-transmitting portion 122a.

[0076] Optionally, the orthographic projection of the light-blocking portion 122b on the light-emitting surface of the display panel 11 partially covers the orthographic projection of the corresponding hollow portion 121a on the light-emitting surface of the display panel 11; the orthographic projection of the second sub-light-transmitting portion 122a on the light-emitting surface of the display panel 11 completely covers the orthographic projection of the corresponding first sub-light-transmitting portion 121b on the light-emitting surface of the display panel 11.

[0077] The hollow portion 121a and the first sub-light-transmitting portion 121b can be formed by patterning the first optical film layer 121, and the light-blocking portion 122b and the second sub-light-transmitting portion 122a can be formed by patterning the second optical film layer 122. The materials of the first sub-light-transmitting portion 121b and the second sub-light-transmitting portion 122a can be light-transmitting films commonly used in the display field, and the material of the light-blocking portion 122b can be a privacy film. The light-blocking portion can be formed by applying a light-shielding material or a light-shielding film to the area of ​​the light-transmitting second optical film layer 122 where the light-blocking portion 122b is to be formed.

[0078] In this way, the light-transmitting area of ​​the second sub-light-transmitting portion 122a is greater than or equal to the light-transmitting area of ​​the first sub-light-transmitting portion 121b, preventing the second optical film layer 122 from blocking the light-transmitting area of ​​the first optical film layer 121. Furthermore, the light-blocking portion 122b is positioned opposite the hollow portion 121a, so that the light-transmitting area of ​​the first optical film layer 121 and the light-transmitting area of ​​the second optical film layer 122 are positioned opposite each other. Thus, with the hollow area of ​​the first optical film layer 121 and the light-blocking area of ​​the second optical film layer 122 determined, the overall light-transmitting area of ​​the optical film layer 12 is maximized, thereby ensuring a superior display effect.

[0079] The adjustment mechanism is configured to act on the optical film layer 12 to deform the optical film layer 12, thereby forming a light-blocking surface disposed at an angle relative to the light-emitting surface 11a of the display panel 11, with the light-blocking portion 122b and the second light-transmitting sub-portion 122a forming a light-blocking surface. In the normal display state, the light-blocking portion 122b and the second light-transmitting sub-portion 122a are in a wrinkled state, and in the privacy protection state, the light-blocking portion 122b and the second light-transmitting sub-portion 122a are in a flattened state. Alternatively, in the normal display state, the light-blocking portion 122b and the second light-transmitting sub-portion 122a are in a retracted state, and in the privacy protection state, the light-blocking portion 122b and the second light-transmitting sub-portion 122a are in an extended state.

[0080] Optionally, the overlapping part of the orthographic projection of the second sub-light-transmitting portion 122a and the corresponding first sub-light-transmitting portion 121b on the light-emitting surface of the display panel 11 is located in a fixed area. In this way, the light transmission effect of the fixed area is not affected by the morphological change of the deformation area, thereby ensuring the display effect.

[0081] Optionally, the adjustment mechanism is located in the hollow portion 121 a , thereby fully utilizing the space in the hollow portion 121 a to reduce the thickness of the display panel.

[0082] Optionally, the first optical film layer 121 is located between the display panel 11 and the second optical film layer 122. In this way, the first optical film layer 121 forming the hollow portion 121a is located on the inner side, while the second optical film layer 122 is located on the outer side. When the optical film layer 12 and the display panel 11 are stacked, the resulting combined structure has a smooth surface in a normal display state.

[0083] Optionally, the adjustment mechanism is located between the display panel 11 and the second optical film layer 122. Based on this, the adjustment mechanism can be connected to the second optical film layer 122, so that the adjustment mechanism can directly generate a force on the second optical film layer 122.

[0084] Optionally, the first sub-light-transmitting portion 121b is connected to the second sub-light-transmitting portion 122a, and the first sub-light-transmitting portion 121b is connected to the light-blocking portion 122b, thereby improving the stability of different layers and different regions in the optical film layer 12.

[0085] Optionally, the adjustment mechanism is connected to the corresponding second light-transmitting sub-portion 122a and light-blocking portion 122b. This allows the adjustment mechanism to directly act on the light-blocking portion 122b, enhancing the sensitivity of the privacy protection state adjustment. Furthermore, since the adjustment mechanism is connected to both the second light-transmitting sub-portion 122a and the light-blocking portion 122b, the connection between the adjustment mechanism and the optical film layer 12 is more stable.

[0086] Optionally, the second sub-light-transmitting portions 122a and the light-blocking portions 122b are alternately arranged along a first direction, wherein the first direction is parallel to the light-emitting surface 11a of the display panel 11. Based on this, when the light-blocking portions 122b are deformed to form light-blocking surfaces, the multiple light-blocking surfaces form a grid structure, thereby achieving an anti-peeping effect.

[0087] In some embodiments, the thickness of the first optical film layer 121 is greater than that of the second optical film layer 122. Thus, the space provided in the hollow portion 121a of the first optical film layer 121 is relatively large, so that when an adjustment mechanism is provided between the display panel 11 and the optical film layer 12, more space is available, thereby reducing the process difficulty.

[0088] Figure 3 A structural schematic diagram of another embodiment of the present application showing a display module in an anti-peeping state is shown.

[0089] See Figure 3 In other embodiments, the optical film layer 12 includes a third optical film layer 123, a fourth optical film layer 124 and a fifth optical film layer 125 stacked together, the fourth optical film layer 124 is located between the third optical film layer 123 and the fifth optical film layer 125, the third optical film layer 123 includes a plurality of hollow portions 123a and third sub-light-transmitting portions 123b separated by the plurality of hollow portions 123a, the fourth optical film layer 124 is entirely light-transmitting, and the fifth optical film layer 125 includes a plurality of hollow portions 125a and light-blocking portions 125b separated by the plurality of hollow portions 125a.

[0090] See Figure 1 and Figure 2In some embodiments, the light-blocking portion 122b includes a fixed end and a movable end, and the adjustment mechanism is configured to drive the movable end of the light-blocking portion 122b to move in a direction perpendicular to the light-emitting surface of the display panel 11 to adjust the shape of the light-blocking portion 122b. The movable end of the light-blocking portion 122b may be connected to the adjustment mechanism. The fixed end of the light-blocking portion 122b may be connected to the first sub-light-transmitting portion 121b. Based on this, by driving the movable end of the light-blocking portion 122b away from the display panel 11 in a direction perpendicular to the light-emitting surface of the display panel 11 by the adjustment mechanism, the light-blocking portion 122b may form a light-blocking surface that is set at an angle to the light-emitting surface of the display panel 11, thereby achieving an anti-peeping effect; by driving the movable end of the light-blocking portion 122b toward the display panel 11 in a direction perpendicular to the light-emitting surface of the display panel 11 by the adjustment mechanism, the plane where the light-blocking portion 122b is located may be parallel to the light-emitting surface of the display panel 11, thereby achieving a normal display effect.

[0091] Optionally, the second sub-light-transmitting portion 122a includes a fixed end and a movable end. The adjustment mechanism is configured to drive the movable end of the second sub-light-transmitting portion 122a to move in a direction perpendicular to the light-emitting surface of the display panel 11 to adjust the shape of the second sub-light-transmitting portion 122a. The movable end of the second sub-light-transmitting portion 122a can be connected to the adjustment mechanism. The fixed end of the second sub-light-transmitting portion 122a can be connected to the first sub-light-transmitting portion 121b.

[0092] Optionally, the adjustment mechanism includes a telescopic member, and through the telescopic deformation of the telescopic member, the light-blocking portion 122b can be deformed to form a light-blocking surface. The telescopic member may include an electrostrictive material. The telescopic member can shrink or stretch in a direction perpendicular to the light-emitting surface of the display panel 11. Exemplarily, the material of the telescopic member is a piezoelectric material, one end of the telescopic member is connected to the display panel 11, and the other end is connected to the light-blocking portion 122b. In this way, the characteristic of the piezoelectric material that mechanically deforms due to the action of the electric field can be utilized to make the light-blocking portion 122b change shape according to the user's needs.

[0093] Optionally, the adjustment mechanism includes a magnetic assembly. The magnetic assembly includes a first magnet 131 and a second magnet 132 disposed opposite each other, the first magnet 131 and the second magnet 132 being disposed opposite each other in a direction perpendicular to the light-emitting surface of the display panel 11. For example, the first magnet 131 is disposed on the display panel 11, and the second magnet 132 is disposed on the optical film layer 12 (e.g., the second optical film layer 122). At least one of the first magnet 131 and the second magnet 132 is configured to be magnetically adjustable. When the relative magnetic poles of the first magnet 131 and the second magnet 132 are magnetically identical, the second magnet 132 is moved away from the first magnet 131, thereby causing the light-blocking portion 122b to form a light-blocking surface disposed at an angle relative to the light-emitting surface 11a of the display panel 11. The dimensions of the first magnet 131 and the second magnet 132 are in the micrometer range, thereby minimizing obstruction of the display panel 11 and ensuring normal display.

[0094] Optionally, there may be multiple adjustment mechanisms, which may be arranged in a dot matrix to reduce the impact of the adjustment mechanism on the display effect of the display panel in the normal display state. Exemplarily, the first magnet 131 and the second magnet 132 may be arranged in a dot matrix.

[0095] Thus, when it is necessary to switch to the anti-peeping state, the magnetic properties of the opposing poles of the first magnet 131 and the second magnet 132 are adjusted to be the same. The repulsive magnetic force between the first magnet 131 and the second magnet 132 is used to move the second magnet 132 away from the first magnet 131, thereby causing the deformed area of ​​the optical film layer 12 to deform outwardly and convexly toward the side away from the display panel 11, forming a light-blocking surface arranged at an angle relative to the light-emitting surface 11a of the display panel 11, thereby achieving invisibility at a specific viewing angle. When it is necessary to switch to the normal display state, the magnetic properties of the opposing poles of the first magnet 131 and the second magnet 132 are adjusted to be opposite. The attractive magnetic force between the first magnet 131 and the second magnet 132 is used to attract the second magnet 132 to the first magnet 131, thereby restoring the optical film layer 12 to a flat state and achieving visibility at all viewing angles.

[0096] For example, the first magnet 131 and the second magnet 132 are both electromagnets, and both are electrically connected to the control circuit. This allows for a wider range of magnetic combinations of the first magnet 131 and the second magnet. In other embodiments, one of the first magnet 131 and the second magnet can be a permanent magnet and the other an electromagnet. Since the permanent magnet does not need to be electrically connected to the control circuit, wiring can be reduced.

[0097] Optionally, the first magnet 131 and the second magnet 132 have the same or different sizes. For example, the orthographic projection of the first magnet 131 on the display panel 11 completely overlaps with the orthographic projection of the second magnet 132 on the display panel 11, thereby maximizing the area of ​​the facing surface between the first magnet 131 and the second magnet 132 while minimizing obstruction of the display panel 11, thereby ensuring a strong magnetic force while improving the display effect.

[0098] The light-blocking portion 122b and the second sub-light-transmitting portion 122a are respectively provided on both sides of the second magnet 132, so that the forces on both sides of the second magnet 132 can be balanced, thereby avoiding the situation where only the light-blocking portion 122b is provided without the second sub-light-transmitting portion 122a, resulting in uneven forces on both sides of the second magnet 132 and easy flipping.

[0099] Based on the same purpose of the invention, the present application also provides a display device. The display device includes a tracking unit, a controller and the display module in the above embodiment. The tracking unit is configured to monitor the eye feature data of a person in the target space, the controller is electrically connected to the tracking unit and the adjustment mechanism, and the controller is configured to control the adjustment mechanism according to the eye feature data monitored by the tracking unit, so that the light-blocking portion forms a light-blocking surface that is set at an angle relative to the light-emitting surface of the display panel. Exemplarily, the tracking unit is a camera, the camera is electrically connected to the controller, the target space is the cab of the vehicle, and the person in the target space is the main driver. Based on this, the tracking unit tracks the eye position of the main driver to determine whether the main driver is watching the screen and generates a corresponding electrical signal, and then the controller controls the state of the anti-peeping component of the display module according to the generated electrical signal, so that when the main driver does not need to watch the screen, the anti-peeping mode is turned on, and when the main driver needs to watch the screen, the anti-peeping mode is turned off and the normal display state is entered.

[0100] Optionally, the eye feature data includes eye gaze direction data and eye gaze duration data. By combining the eye gaze direction data and the eye gaze duration data of the person in the target space, it is possible to more accurately determine whether the person in the target space needs to use the display device.

[0101] Figure 4 A schematic structural diagram of a display device for vehicle-mounted display in one embodiment of the present application is shown. Figure 5 A schematic structural diagram of a display device for vehicle-mounted display in another embodiment of the present application is shown.

[0102] See Figure 2 、 Figure 4 and Figure 5When the above-mentioned display device 10 is used for vehicle display, if the driver's seat and the steering wheel 30 are located on the left side of the vehicle body 20, then in the anti-peep mode, the light-blocking portion is located on the left side of the light-transmitting portion; if the driver's seat and the steering wheel 30 are located on the right side of the vehicle body 20, then in the anti-peep mode, the light-blocking portion is located on the right side of the light-transmitting portion.

[0103] Figure 6 A flowchart of a method for controlling a display device in an embodiment of the present application is shown.

[0104] See Figure 6 Based on the same invention purpose, the present application also provides a method for controlling a display device, which can be implemented based on the display device provided in the above embodiment. The method includes the following steps:

[0105] Step S1: obtaining eye feature data of a person in a target space through a tracking unit;

[0106] Step S2: judging whether the eye feature data satisfies an anti-peeping condition based on the eye feature data; if so, controlling the adjustment mechanism to act on the light-blocking portion to deform the light-blocking portion, thereby forming a light-blocking surface that is arranged at an angle relative to the light-emitting surface of the display panel.

[0107] It should be noted that the structure of the display device using this method can refer to the display device in the above embodiment.

[0108] Optionally, the eye feature data includes eye gaze direction data and eye gaze time data; the anti-peeping conditions include: the angle between the eye gaze direction of a person in the target space and the plane where the display device is located exceeds a preset threshold range; and the eye gaze time of the person in the target space exceeds a preset critical time.

[0109] Optionally, the eye gaze time data is obtained by at least two consecutive facial images in which the eye position of the person in the target space remains unchanged; or the eye gaze time data is obtained by at least two consecutive facial images in which the eye position of the person in the target space changes by an amplitude less than a preset critical value.

[0110] Based on this, the tracking unit obtains the eye feature data of the person in the target space, determines whether the anti-peeping mode needs to be enabled, and controls the state of the anti-peeping component of the display module accordingly. When the person in the target space does not need to view the screen, the anti-peeping mode is enabled. When the person in the target space needs to view the screen, the anti-peeping mode is disabled, and the display enters the normal display state. Thus, when the control method of the display device is used for an in-vehicle display, the anti-peeping mode is enabled when the driver does not need to view the screen, and disabled when the driver needs to view the screen, and the display enters the normal display state. This satisfies the driver's and passengers' needs for the screen while preventing the screen from interfering with the driver.

[0111] For example, when the angle between the gaze direction of a person in the target space and the plane where the display device is located exceeds a preset threshold range, and the gaze time of the person in the target space exceeds a preset critical time, it indicates that the person in the target space has been gazing at an environment other than the display device (e.g., the road ahead) for a long time. At this time, the display device is often not needed. Based on this, the controller controls the magnetism of the opposing poles of the first magnet and the second magnet to be the same, so that a repulsive magnetic force is generated between the first magnet and the second magnet, so that the second magnet moves away from the first magnet and acts on the optical film layer to deform the light-blocking portion, thereby forming a light-blocking surface at an angle relative to the light-emitting surface of the display panel. The light-blocking surface blocks light emitted by the display panel in the direction of the light-blocking surface, so that the light emitted by the display panel is invisible at certain viewing angles, thereby achieving an anti-peeping effect. Otherwise, the controller controls the magnetism of the opposing poles of the first magnet and the second magnet to be opposite, so that an attractive magnetic force is generated between the first magnet and the second magnet, so that the second magnet is attracted to the first magnet and the force acting on the light-blocking portion is removed, thereby allowing the display device to display normally.

[0112] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0113] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A display module, characterized in that: include: Display panel; as well as An anti-peeping component, comprising an adjustment mechanism and a plurality of light-blocking portions arranged at intervals on the light-emitting side of the display panel; The adjustment mechanism is configured to act on the light-blocking portion to deform the light-blocking portion, thereby forming a light-blocking surface of the light-blocking portion that is arranged at an angle relative to the light-emitting surface of the display panel; The privacy protection component further includes an optical film layer, the optical film layer including a light-transmitting portion and the light-blocking portion, the optical film layer having a plurality of fixed areas and a plurality of deformable areas; the adjustment mechanism is located between the display panel and the optical film layer; The light-blocking portion and at least a portion of the light-transmitting portion are located in the deformation region; the adjustment mechanism is correspondingly disposed between the deformation region and the display panel; The deformation region is configured to deform outwardly toward a side away from the display panel in response to the action of the adjustment mechanism, so that the light-blocking portion forms the light-blocking surface that is arranged at an angle relative to the light-emitting surface of the display panel.

2. The display module according to claim 1, wherein: In the normal display state, the light-blocking portion is in a wrinkled state, and in the anti-peeping state, the light-blocking portion is in a flattened state; alternatively, in the normal display state, the light-blocking portion is in a contracted state, and in the anti-peeping state, the light-blocking portion is in an extended state.

3. The display module according to claim 2, wherein: In the anti-peeping state, the light-blocking surface is constructed as a plane arranged at an angle relative to the light-emitting surface of the display panel.

4. The display module according to claim 2, wherein: In the anti-peeping state, the light-blocking surfaces formed by the plurality of light-blocking portions are arranged parallel to each other.

5. The display module according to claim 1, wherein: The optical film layer comprises a first optical film layer and a second optical film layer which are stacked; The first optical film layer includes a plurality of first sub-light-transmitting portions and a plurality of hollow portions; The second optical film layer includes a plurality of second light-transmitting sub-portions and a plurality of light-blocking portions; The light-blocking portion and at least a portion of the second light-transmitting sub-portion are located in the deformation area; the first light-transmitting sub-portion is located in the fixed area; the light-blocking portion and the second light-transmitting sub-portion are located on both sides of the corresponding adjustment mechanism, and the adjustment mechanism is configured to act on the second optical film layer to cause the light-blocking portion and the second light-transmitting sub-portion to deform; The orthographic projection of the light-blocking portion on the light-emitting surface of the display panel partially covers the orthographic projection of the corresponding hollow portion on the light-emitting surface of the display panel; The orthographic projection of the second sub-light-transmitting portion on the light-emitting surface of the display panel completely covers the orthographic projection of the corresponding first sub-light-transmitting portion on the light-emitting surface of the display panel.

6. The display module according to claim 5, wherein: The overlapping portion of the orthographic projections of the second sub-light-transmitting portion and the corresponding first sub-light-transmitting portion on the light-emitting surface of the display panel is located in the fixed area.

7. The display module according to claim 5, wherein: The adjustment mechanism is located in the hollow portion.

8. The display module according to claim 5, wherein: The first optical film layer is located between the display panel and the second optical film layer.

9. The display module according to claim 5, wherein: The adjustment mechanism is located between the display panel and the second optical film layer.

10. The display module according to claim 5, wherein: The first sub-light-transmitting portion is connected to the second sub-light-transmitting portion; and the first sub-light-transmitting portion is connected to the light-blocking portion.

11. The display module according to claim 5, wherein: The adjustment mechanism is connected to the corresponding second sub-light-transmitting portion and the light-blocking portion.

12. The display module according to claim 5, wherein: The second sub-light-transmitting portions and the light-blocking portions are alternately arranged along a first direction, wherein the first direction is parallel to a light-emitting surface of the display panel.

13. The display module according to claim 5, wherein: The thickness of the first optical film layer is greater than the thickness of the second optical film layer.

14. The display module according to claim 1 or 2, characterized in that: The light-blocking portion includes a fixed end and a movable end, and the adjustment mechanism is configured to drive the movable end of the light-blocking portion to move in a direction perpendicular to the light-emitting surface of the display panel to adjust the shape of the light-blocking portion.

15. The display module according to claim 14, wherein: The adjustment mechanism includes a telescopic member provided between the display panel and the light blocking portion; Alternatively, the adjustment mechanism includes: a magnetic assembly, the magnetic assembly including a first magnet and a second magnet facing each other along the direction perpendicular to the light emitting surface of the display panel; The first magnet and / or the second magnet are configured to be magnetically adjustable so that when the magnetic properties of the relative poles of the first magnet and the second magnet are the same, the second magnet can be moved in a direction away from the first magnet, thereby forming a light-blocking surface that is arranged at an angle relative to the light-emitting surface of the display panel.

16. The display module according to claim 15, wherein: The orthographic projection of the first magnet on the light-emitting surface of the display panel completely overlaps with the orthographic projection of the second magnet on the light-emitting surface of the display panel.

17. A display device, characterized in that: include: The display module according to any one of claims 1 to 16; a tracking unit configured to monitor eye feature data of a person in a target space; as well as A controller is electrically connected to the tracking unit and the adjustment mechanism, and the controller is configured to control the adjustment mechanism according to the eye feature data monitored by the tracking unit so that the light-blocking portion forms a light-blocking surface that is arranged at an angle relative to the light-emitting surface of the display panel.

18. The display device according to claim 17, wherein: The eye feature data includes eye gaze direction data and eye gaze time data.

19. A control method for the display device according to claim 17, characterized in that: The method comprises the following steps: Acquire eye feature data of people in the target space through the tracking unit; Based on the eyeball feature data, it is determined whether the eyeball feature data meets the anti-peeping condition; if so, the adjustment mechanism is controlled to act on the light-blocking portion to cause the light-blocking portion to deform, thereby forming a light-blocking surface that is arranged at an angle relative to the light-emitting surface of the display panel.

20. The control method according to claim 19, characterized in that: The eye feature data includes eye gaze direction data and eye gaze time data; The anti-peeping conditions include: the angle between the gaze direction of a person in the target space and the plane where the display device is located exceeds a preset threshold range; and the gaze time of the person in the target space exceeds a preset critical time.

21. The control method according to claim 20, characterized in that: The eye fixation time data is obtained through at least two consecutive human face images in which the amplitude of the change of the human eye position in the target space is less than a preset critical value.

22. The control method according to claim 20, characterized in that: The eye fixation time data is obtained through at least two consecutive human face images in which the eye positions of the human in the target space remain unchanged.

Images